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Subject: Re: Rebel 10 is the only program I have that finds this Move.

Author: Richard A. Fowell (fowell@netcom.com)

Date: 22:40:46 03/04/99

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On March 04, 1999 at 07:20:49, blass uri wrote:

>
>On March 04, 1999 at 07:01:01, Phil Dixon wrote:
>
>>On March 04, 1999 at 05:33:08, odell hall wrote:
>>
>>>
>>>On March 03, 1999 at 21:30:46, odell hall wrote:
>>>
>>>>Hi CCC
>>>>
>>>> In my game against Worf on ICC, I sacrificed a bishop which was critizized by
>>>>worf after the game as being unsound! My intuition told me that it was correct,
>>>>after the game I checked with hiarcs6, and fritz5 to see if they would play the
>>>>move.  Neither program Found it after five minutes.  I was sure that if fritz5,
>>>>a tactical genius could not find the move, I thought I was wasting my time
>>>>trying rebel. To my shock Rebel found the move quite easily in 1 minute 16 sec.
>>>>Here is the position
>>>>
>>
>>Fritz 5.32 finds this move in 4 min 12 sec on my 233 with 32 megs of Ram at 10
>>ply
>
>Fritz5.16 found it also at 10 plies but rejected it at 11 plies on my pent200
>with 64meg hash tables.
>
>I suspect that Fritz5.32 also reject the move at 11 plies
>
>Uri

It may like it again at ply 12.
MacChess 5.01 liked it for plies 9,10,11,12,13

I ran HIARCS 7 for 3 hours on this on my 180MHz machine, it liked
the sac at 4 min, 3 seconds, ( 7 ply) and stuck with it for ply 8, 9, 10.
Last update was at 10,000 seconds - still liked the capture with better
than a +1 pawn favorable evaluation.

MacChess 5.01 also liked it for plies 9,10,11,12,13

05/02|00:00:01|      103861|  -34| Re1 Qf6 Be3 Rhe8 Bd4
05/03|00:00:02|      113405|  -33| Bh2 Nf6 Qf4 Ke8 Nd4
05/18|00:00:02|      183054|  -29| Nd4 Rc8 Be3 Qe7 Re1
06/01|00:00:04|      453667|  -31| Nd4 Rf8 Ne4 Qb6 Bxd6 Bxd4 Bxf8 Rxf8
06/02|00:00:05|      634556|  -27| Be3 f5 Re1 b6 Bf2 Bf6
07/01|00:00:11|     1444606|  -24| Be3 Qe7 Re1 f5 Bf2 Bf6 Nd4
08/01|00:00:23|     3105164|  -24| Be3 Qe7 Re1 f5 Bf2 Bf6 Nd4 Qd8
09/01|00:01:12|    10004186|   -7| Be3 Qe7 Bd4 f5 Bxg7 Nxg7 Re1 Rae8 Nd4
09/30|00:02:48|    23735228|   -3| Bxd6 Bxc3 Nxc3 Kxd6 Rxf7 Qb6 Ne4+ Ke5 Re7+
Kf5 Rxb7 Qa6 Re7 Qxa2 Rxh4
10/01|00:09:31|    80651255|  +47| Bxd6 Kxd6 Rxf7 Re8 Rxg7 Nxg7 Qf4+ Ke7 Qxg4
Kf8 Qf4+ Ke7 Rxh4
11/01|00:20:46|   174285343|  +47| Bxd6 Kxd6 Rxf7 Re8 Rxg7 Nxg7 Qf4+ Ke7 Qxg4
Kf8 Qb4+ Qe7 Qxe7+ Rxe7 Rxh4
12/01|01:17:53|   658786991|  +53| Bxd6 Kxd6 Rxf7 Qe8 Rxg7 Bc8 Qd4 Nxg7 Ne4+ Kc7
Qxg7+ Kb8 Rxh4 Rg8 Qxh6 Rxg2
13/01|03:52:49|  1969789927|  +58| Bxd6 Kxd6 Rxf7 Qe8 Rxg7 Nxg7 Qf4+ Ke7 Qxg4
Kf8 Qb4+ Qe7 Rxh4 Nf5 Qxe7+ Kxe7 Re4+ Kd7



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